[PATCH v3 1/2] dt-bindings: phy: add realtek,rtl8380m-serdes

[Markus Stockhausen]

Add bindings for the SerDes of the Realtek Otto platform. These are
MIPS based network Switch SoCs with up to 52 ports divided into four
different model lines.

Changes in v3

 - renamed to realtek,rtl8380m-serdes.yaml
 - removed parameter controlled-ports
 - verified with make dt_binding_check
 - recipient list according to get_maintainers

Changes in v2:

 - new subject
 - removed patch command sequences
 - renamed parameter controlled-ports to realtek,controlled-ports

Signed-off-by: Markus Stockhausen <markus.stockhausen at gmx.de>
---
 .../bindings/phy/realtek,rtl8380m-serdes.yaml | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/realtek,rtl8380m-serdes.yaml

diff --git a/Documentation/devicetree/bindings/phy/realtek,rtl8380m-serdes.yaml b/Documentation/devicetree/bindings/phy/realtek,rtl8380m-serdes.yaml
new file mode 100644
index 000000000000..c1deef8ec63c
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/realtek,rtl8380m-serdes.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/realtek,rtl8380m-serdes.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Realtek Otto SerDes controller
+
+maintainers:
+  - Markus Stockhausen <markus.stockhausen at gmx.de>
+
+description:
+  The MIPS based Realtek Switch SoCs of the Realtek RTL838x, RTL839x, RTL930x
+  and RTL931x series have multiple SerDes built in. They are linked to single,
+  quad or octa PHYs like the RTL8218B, RTL8218D or RTL8214FC and are one of
+  the integral part of the up-to-52-port switch architecture. Although these
+  SerDes controllers have common basics they are designed differently in the
+  SoC families.
+
+properties:
+  $nodename:
+    pattern: "^phy@[0-9a-f]+$"
+
+  compatible:
+    items:
+      - enum:
+          - realtek,rtl8380m-serdes
+          - realtek,rtl8392m-serdes
+          - realtek,rtl9302b-serdes
+          - realtek,rtl9311-serdes
+
+  reg:
+    items:
+      description:
+        The primary register memory location. On RTL83xx devices this is the
+        address to the I/O register range, on RTL93xx devices this is the
+        address of the MDIO style command/data registers.
+
+  "#phy-cells":
+    const: 4
+    description:
+      The first number defines the SerDes to use. The second number a linked
+      SerDes. E.g. if a octa 1G PHY is attached to two QSGMII SerDes. The third
+      number is the first switch port this SerDes is working for, the fourth
+      number is the last switch port the SerDes is working for.
+
+  firmware-name:
+    maxItems: 1
+    description:
+      An alternative name of the SerDes firmware image file located in the
+      firmware search path. Set to "" to disable firmware loading.
+
+required:
+  - compatible
+  - reg
+  - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    serdes: phy at 1b00e780 {
+      compatible = "realtek,rtl9302b-serdes";
+      reg = <0x1b0003b0 0x8>;
+      firmware-name = "zyxel-xgs1210-12-serdes.fw";
+      #phy-cells = <4>;
+    };
--
2.46.2